Free Online Digital Alarm Clock with Test Sound – Always Loud & Reliable

Free Online Alarm Clock — Fixed
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Create / Edit Alarm

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Preview plays 3 loops only. Selected sound shows in the alarm card.

Features

⏰ Set multiple alarms easily — create and label many alarms for different tasks and routines.
🔔 Preview alarm sounds — test sounds (3 loops) before saving for the best wake-up tone.
🔄 Loop or play once — choose continuous alerts or a 1-minute one-time ring.
😴 Custom snooze times — use quick snooze buttons or enter a custom time in minutes.
📱 Mobile & desktop friendly — works across devices in the browser.
🌐 Works offline in browser — alarms continue after initial load without constant internet.

Quick Controls

Use the Share button to generate a link others can import. Embed produces an iframe snippet.
Keep the tab open for reliable ringing — modern browsers may suspend background tabs.

Active Alarms

No alarms yet. Add one using the form.

Features

⏰ Set multiple alarms easily — create and label many alarms for different tasks and routines.
🔔 Preview alarm sounds — test sounds (3 loops) before saving for the best wake-up tone.
🔄 Loop or play once — choose continuous alerts or a 1-minute one-time ring.
😴 Custom snooze times — use quick snooze buttons or enter a custom time in minutes.
📱 Mobile & desktop friendly — works across devices in the browser.
🌐 Works offline in browser — alarms continue after initial load without constant internet.

Quick Controls

Use the Share button to generate a link others can import. Embed produces an iframe snippet.
Keep the tab open for reliable ringing — modern browsers may suspend background tabs.

How It Works

Our online alarm runs directly in the browser. Alarms are saved in your browser (localStorage) so they persist across refreshes. The alarm uses an internal audio engine for reliable playback and preview. For best reliability keep the tab open and the device awake.

Quick Start

  1. Enter a label and choose a time (AM/PM).
  2. Pick repeat days and a sound; Preview before saving.
  3. Choose Play once (1 minute) or Loop until stopped.
  4. Click Save — your alarms persist and will ring at the set time.

Benefits

Set alarms without installing apps. Use for wake-up, medication reminders, meetings, or study sessions. Free, no login required, and works across desktops and mobile.

Web vs Mobile Alarm

Web alarms require the tab to be open but are cross-platform and shareable. Mobile alarms use OS services and can run in the background, but require installation.

Reliability Tips

  • Keep the tab open and device awake for consistent alerts.
  • Ensure system and tab volume are up.
  • Use Loop mode if you risk missing the first ring.

FAQs

Can I set multiple alarms online?

Yes — create as many alarms as you need and label them for clarity.

Will alarms survive a page refresh?

Yes — alarms are stored in your browser and reload on refresh automatically.

Do sounds always play?

Sounds are produced by an internal audio engine and play reliably after user interaction (the first click resumes audio in some browsers).

How do I edit an alarm?

Click Edit on the alarm card to populate the form. Change values and click Save to update the alarm.

You can reach this tool by using these search terms

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